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<title>Object.prototype.hasOwnProperty: Check prototype chain</title>
<link rel="author" title="Masaya Iseki" href="mailto:iseki.m.aa@gmail.com">
<link rel="help" href="https://people.mozilla.org/~jorendorff/es6-draft.html#sec-object.prototype.hasownproperty">
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script>
test(function() {
  [{}, []].forEach(function(that) {
  	that.prop = 'exists';
  	assert_true(that.hasOwnProperty('prop'));
  	assert_true('hasOwnProperty' in that);
  	assert_false(that.hasOwnProperty('hasOwnProperty'));
  });
});

test(function() {
  ['foo', 42].forEach(function(that) {
  	assert_false(that.hasOwnProperty('hasOwnProperty'));
  });
});

test(function() {
  [null, undefined].forEach(function(that) {
    assert_throws_js(TypeError,
        function() { that.hasOwnProperty('hasOwnProperty'); });
  });
});
</script>

</body>
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